/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package examples;

import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;

/**
 * Example1: the simplest tag Collect attributes and call into some actions
 * 
 * <foo att1="..." att2="...." att3="...." />
 */

public class FooTag extends ExampleTagBase {
	private String atts[] = new String[3];
	int i = 0;

	private final void setAtt(int index, String value) {
		atts[index] = value;
	}

	public void setAtt1(String value) {
		setAtt(0, value);
	}

	public void setAtt2(String value) {
		setAtt(1, value);
	}

	public void setAtt3(String value) {
		setAtt(2, value);
	}

	/**
	 * Process start tag
	 * 
	 * @return EVAL_BODY_INCLUDE
	 */
	public int doStartTag() throws JspException {
		i = 0;
		return EVAL_BODY_BUFFERED;
	}

	public void doInitBody() throws JspException {
		pageContext.setAttribute("member", atts[i]);
		i++;
	}

	public int doAfterBody() throws JspException {
		try {
			if (i == 3) {
				bodyOut.writeOut(bodyOut.getEnclosingWriter());
				return SKIP_BODY;
			} else
				pageContext.setAttribute("member", atts[i]);
			i++;
			return EVAL_BODY_BUFFERED;
		} catch (IOException ex) {
			throw new JspTagException(ex.toString());
		}
	}
}
